Free electrons deposited into the Antarctic stratosphere could suppress catalytic ozone destruction by chlorine. This is beause free electrons, at appropriate concentrations, induce Cl− formation, and Cl− does not react with O3. If the free‐electron concentration is greater than 109 cm−3, calculations on a computational model of the Antarctic stratosphere indicate that more than 80% of the free electrons eventually attach to chlorine and, as a result, ozone depletion during Antarctic spring can be essentially stopped under idealized conditions of no transport. However, extending this scheme for large‐scale in situ ozone remediation may be difficult because ofvarious practical considerations.